4D v13
SVG_Define_filter
- 4D SVG Component
-
- Structure and Definitions
-
- SVG_Define_clip_path
- SVG_Define_filter
- SVG_Define_linear_gradientUpd
- SVG_Define_marker
- SVG_Define_pattern
- SVG_Define_radial_gradient
- SVG_Define_shadow
- SVG_Define_solidColor
- SVG_Define_style
- SVG_DEFINE_STYLE_WITH_ARRAYSNew
- SVG_Define_symbol
- SVG_DELETE_OBJECT
- SVG_Get_default_encoding
- SVG_New_group
- SVG_SET_DEFAULT_ENCODING
- SVG_Set_description
- SVG_SET_PATTERN_CONTENT_UNITS
- SVG_SET_PATTERN_UNITS
- SVG_Set_title
SVG_Define_filter
| SVG_Define_filter ( parentSVGObject ; id {; frameX ; frameY {; frameWidth ; frameHeight {; frameUnit ; filterUnit}}}} ) -> Function result | ||||||||
| Parameter | Type | Description | ||||||
| parentSVGObject | SVG_Ref |
|
Reference of parent element | |||||
| id | String |
|
Name of symbol | |||||
| frameX | Longint |
|
Coordinate on X axis | |||||
| frameY | Longint |
|
Coordinate on Y axis | |||||
| frameWidth | Longint |
|
Width of target rectangle | |||||
| frameHeight | Longint |
|
Height of target rectangle | |||||
| frameUnit | String |
|
Coordinate system of frame | |||||
| filterUnit | String |
|
Filter system of values | |||||
| Function result | SVG_Ref |
|
Reference of filter | |||||
The SVG_Define_filter command sets a new filter in the SVG container designated by parentSVGObject and returns its reference. If parentSVGObject is not an SVG document, an error is generated.
A filter is a succession of graphic operations that will be applied to the target element. The filter element is never rendered directly; it will be applied to an object using the SVG_SET_FILTER command.
The id parameter specifies the name of the marker. The name will be used to associate a filter with an object. If an element with the same name exists, it will be replaced.
The optional frameX, frameY, frameWidth and frameHeight parameters set a rectangular region in the document to which this filter will be applied.
The optional frameUnit parameter sets the coordinate system for the 4 previous parameters. Expected values: "userSpaceOnUse" or "objectBoundingBox" (default value).
The optional filterUnit parameter sets the coordinate system for the lenths and the filter definition properties. Expected values: "userSpaceOnUse" (default value) or "objectBoundingBox".
In this example, we want to perform the following operations:
- create a rectangle with 50% blue background
- create a 4% blur filter and apply it to this rectangle
- save the result in an SVG file on disk.
$Dom_SVG:=SVG_New
//creation of a rectangle with 50% blue background
$Dom_rect:=SVG_New_rect($Dom_SVG;50;50;50;50;0;0;"blue:50";"blue:50")
//creation of 4% blur filter
$Dom_filter:=SVG_Define_filter($Dom_SVG;"blur")
SVG_Filter_Blur($Dom_filter;4)
SVG_Filter_Offset($Dom_filter;4)
//application of this filter to the rectangle
SVG_SET_FILTER($Dom_rect;"blur")
//saving result in an SVG file
SVG_SAVE_AS_TEXT($Dom_SVG;System folder(Desktop)+"test.svg")
SVG_CLEAR($Dom_SVG)Result:
Product: 4D
Theme: Structure and Definitions
Number:
65988
Created: Composant 4D SVG v11.3
SVG_Filter_Blend
SVG_Filter_Blur
SVG_Filter_Offset
SVG_SET_FILTER
